Closure operator



July 14, 1931. J. GUNDERSON .CLOSURE OPERATOR Filed Sept. 24, 1928 3 Sheets-Sheet 2 o o o 7 Z j 02] J F0 0 Inventor y yi @7072]; ,Ganclerson,

Attorney July 14, 1931. J. GUNDERSON CLOSURE OPERATOR Filed Sept. 24. 1928 3 Sheets-Sheet 5 1n wemor @727; uizdersom,

like.

Patented July 14, 1931 star OFFICE JOHN GUNDERSON, OF CONCRETE, WASHINGTON CLOSURE OPERATOR Application filed September 24, 1928. Serial No. 308,011.

This invention pertains to new and useful improvements in closure operators and more particularly to means for remotely operating the doors of garages barns, and the Closure operators of this character have been heretofore devised with this attainment in view, but because of intricate and cumbersome mechanism, these operators have met'with but slight use. It is the aim of this invention to overcome the deficiency ofthe present type of door operators by providing an operating mechanism which will be positive in operation and which employs but a limited number of parts.

The prime object of this invention resides in the provision of a door operator having means whereby the door may be either opened or closed from a remote exterior point.

Another object of importance resides in the provision of a single operative mechanism which can be made to serve thepurpose of operating double doors without in any manner interfering with the part thereof.

Still another object is to provide a door operator positive in operation and wherein because of the peculiar association of parts, the same is not susceptible of quick wear but will be exceedingly durable in use.

After considering the following specification and claim other important objects and advantages of the invention will become aparent.

In the drawings Figure 1 represents a vertical section through a conventional door frame showing the usual door mounted upon novel structure included in the present invention and being also shown in closed position with respect to the door frame.

Figure 2 represents a similar view fragmentarily showing the door in open position and further showing the operable parts of this invention in inverse order.

Figure 8 is an enlarged fragmentary longitudinal sectional view through the conduit through which the actuating strands for actuating the operable parts of the invention are trained.

Figure 4 represents a fragmentary outside elevation of the door in closed position with respect to the present invention. Figure 5 is an inside fragmentary eleva tion showing the parts in substantially the same position as in Figure 4. i t

Figure 6 illustrates a horizontal sectional view through the door frame disclosing in plan view the connection of a pair of hinged doors inassociation with the present inveni closed position .with the assistance of. the

present invention which will be fully described hereinafter. This door may. be of the twin or double type including the sections4 l. v I

One of the door. sections 4 is provided with straps 5 5 which are looped around a vertical hinge bar 6.

A body 7 is formed with an opening 8 through which the bar '6 extends, and this body 7 is secured .to one j am portion of the door frame, in the manner clearly shown particularly in' Figure 4. Thetop of this body is inclinedvin opposite directions from a high point 9. These inclined surfaces are substantiallyflat. The body 7 is curved at its upper portion of its outer side, v An ,arcuate substantially semi-circular plate 10 is rockably mounted on'the body 7. The plate 10 is provided intermediate its ends with a depending boss 11 through which .a pin or in fact any suitable member 12 extends for securing the boss to the body at 0 its high point- 9 and in a manner whereby the plate '10 may be tilted to bear against either of the inclined'surfaces of the body'i'ex tending from th e high 9 Each of the plate 10 is provided with an upwardly inclined arm extension 13.

An elongated conduit 14 of hollow construction is secured at one end portion to the upper portion of the door frame and is adapted to extend outwardly from the building for a predetermined distance. Mounted within the conduit is. an upper and alower set of rollers 15. Over the lower set of rollers a flexible strand 16 is trained and is con nected at one end to one of-the arms 13', whileits opposite end depends below the conduit 14 in the manner clearly shown in Figure 1'. A second strand 17 is trained over the upper set of rollers and extends over the doorlrame and into the inside. ofthe building for connection to the opposite arm 13. Theouter end; portion of. this strand likewise. depends belpwtheconduit 14.

The door section/l is formedat its hinged edgeportionwith an opening, 18 at the upper edge or. which a roller 19 is mounted and adapted: to bear-upon thetrocker bar plate 10 for supporting the door section. An arm 20 projects inwardly from the hinged edge portion of -oneoithe door sections 44s and has oneendof an elongated. connecting. bar 21 pivotedstheretoat its opposite end, while the opposite end of theconnecting bar ispivotalliy connected. to: the. opposite door. section 4 Obviously a movementozt the first mentioned, section will, resultin a relative. move-. ment ottheother.

A gradually. risingrib22 is located on the outerfend portion, of the rocker plate 10, and is, shownin Fignreszl, 2, 6 'respectiyely Assuming. that the. door frame isin the closed p osition, as. shown-in. Figure. 1.. In. this position theroller 19 isbearing .ontherocker plate IO-at a, point inwardly from the. sup ported: point thereon. Obviously, in this position the door will have the tendency to grayi-tate inwardly, on the plate. and. will be thusmaintainedv in. closed, position against the stop piece 2. When it is desiredtoiopen the. door,,the strand 1;7 is pulled downwardly at its outer depending endportionwhich will result inthelifting ozttheinnermost; arm. 13, attheinnerendof theroclrer platelO. This willflobviously result in tilting oi the rocker plate .toianinvensed position permittingthe door 3,. to, grayitate down theinclined plate 10 to. rest. upon t e-substa l y ho zontal top of the rib 22 as the roller 1 9 engagesthe low end otthe rib and starts to move over the sametow ard the higherrd; of. the same, the door is. gradually checked in its movement so that said'ribi acts as .a check to/theopening movement of thedoor. The supporting roll er IQminimiZes wear and promotes the efiicieney of--'operationof themechanism.

To again'close the door, the strand:.16-'is pull d"arf its outer endwhichresults in the li ftingot-theouter endportion of the rocker plate- 10- and the consequent inverse inclined positioning of the plate 10, whereby the door will be permitted to gravitate to the position assumed in the first instance.

Obviously by reason of the arm 20 and the connecting arm 21, both sections of the door 3 will operate in unison.

It, is. understood that certain changes in the shape,siz-e or materials may be resorted to; in the construction of this mechanism without departing from the spirit of the adapted-to be mounted on a stationary strucy ture. adjacent the door so that its bulk will be accommodated bythe indenture in the door, the upper portion of said support being provided withinclined surfaces. leading toward an intermediate high point,. a, rock- '1 able connection; between-the middle portion oft-he traelrandthe intermediate high point .of thesupport, said rollerbeing adapted to ride on the said track, and. Ineansfor tilting thesa-idtrack so as to change the inclination Off the; saicl track and a rib, Oil-the 'outer'part of the track gradually sloping downwardly fromoneend ofthe track to a point adjacent e enterhe e f; il. l?- g: engaged y the roller; and acting; as: a check to the openinganovementofthe door.

In testimony whereof I aflix my signature.

JOHN GUNDERSON, 

